Wheat Midge.p65
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چکیده
The loss of kernels lowers the yield, whereas damaged kernels reduce the grade of the harvested wheat. Standards established by the Canadian Grain Commission limit midge damage in No. 1 CWRS and No. 2 CWRS to 2 per cent and 8 per cent respectively, before grade is affected. Damage tolerances for amber durum are 2 per cent for No. 1 CWAD and 8 per cent for No. 2 CWAD. However, if disease associated with midge damage, referred to as severe midge damage, grading tolerances are only 0.1 per cent and 0.25 per cent for CWAD No. 1 and No. 2 respectively. More detailed information regarding grading is available at the Canadian Grain Commission web site: www.cgc.ca in Chapter 4 – Wheat, of the Official Grain Grading Guide
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